diff --git a/FightSystem_API/src/de/steamwar/fightsystem/Config.java b/FightSystem_API/src/de/steamwar/fightsystem/Config.java
index ee08967..48b4196 100644
--- a/FightSystem_API/src/de/steamwar/fightsystem/Config.java
+++ b/FightSystem_API/src/de/steamwar/fightsystem/Config.java
@@ -63,6 +63,8 @@ public class Config {
     public static final de.steamwar.sql.SchematicType SchematicType;
     public static final boolean TeamRedRotate;
     public static final boolean TeamBlueRotate;
+    public static final boolean ReplaceObsidian;
+    public static final boolean ReplaceBedrock;
 
     //team parameter
     public static final String TeamRedName;
@@ -143,6 +145,8 @@ public class Config {
         SchematicDirectory = config.getString("Schematic.Directory");
         SchematicType = de.steamwar.sql.SchematicType.fromDB(config.getString("Schematic.SchematicType"));
         boolean rotate = config.getBoolean("Schematic.Rotate");
+        ReplaceObsidian = config.getBoolean("Schematic.ReplaceObsidian");
+        ReplaceBedrock = config.getBoolean("Schematic.ReplaceBedrock");
 
         TeamRedPrefix = config.getString("Output.TeamRedPrefix");
         TeamBluePrefix = config.getString("Output.TeamBluePrefix");
diff --git a/FightSystem_Main/src/config.yml b/FightSystem_Main/src/config.yml
index ae53ebe..a71e4a3 100644
--- a/FightSystem_Main/src/config.yml
+++ b/FightSystem_Main/src/config.yml
@@ -26,6 +26,8 @@ Schematic:
   Directory: /home/netuser/schematics/
   SchematicType: airship
   Rotate: boolean
+  ReplaceObsidian: boolean
+  ReplaceBedrock: boolean
 Output:
   TeamRedName: Team1
   TeamRedPrefix: §c
diff --git a/FightSystem_Main/src/de/steamwar/fightsystem/FightSystem.java b/FightSystem_Main/src/de/steamwar/fightsystem/FightSystem.java
index 01378c7..1ffa994 100644
--- a/FightSystem_Main/src/de/steamwar/fightsystem/FightSystem.java
+++ b/FightSystem_Main/src/de/steamwar/fightsystem/FightSystem.java
@@ -107,6 +107,8 @@ public class FightSystem extends JavaPlugin {
 
         new PreRunningCountdown();
 
+        Fight.replaceSync();
+
         new WinconditionAllDead();
         new WinconditionCaptainDead();
         new WinconditionWaterTechKO();
diff --git a/FightSystem_Main/src/de/steamwar/fightsystem/fight/Fight.java b/FightSystem_Main/src/de/steamwar/fightsystem/fight/Fight.java
index 9fab60b..a1b820d 100644
--- a/FightSystem_Main/src/de/steamwar/fightsystem/fight/Fight.java
+++ b/FightSystem_Main/src/de/steamwar/fightsystem/fight/Fight.java
@@ -2,6 +2,7 @@ package de.steamwar.fightsystem.fight;
 
 import de.steamwar.fightsystem.Config;
 import org.bukkit.Bukkit;
+import org.bukkit.Material;
 import org.bukkit.Sound;
 import org.bukkit.entity.Player;
 
@@ -66,4 +67,12 @@ public class Fight {
     public static void setLevel(int level) {
         Bukkit.getServer().getOnlinePlayers().forEach(player -> player.setLevel(level));
     }
+
+    public static void replaceSync() {
+        Fight.getRedTeam().replaceSync(Config.ReplaceObsidian, Material.OBSIDIAN, Material.TNT);
+        Fight.getBlueTeam().replaceSync(Config.ReplaceObsidian, Material.OBSIDIAN, Material.TNT);
+
+        Fight.getRedTeam().replaceSync(Config.ReplaceBedrock, Material.BEDROCK, Material.SLIME_BLOCK);
+        Fight.getBlueTeam().replaceSync(Config.ReplaceBedrock, Material.BEDROCK, Material.SLIME_BLOCK);
+    }
 }
diff --git a/FightSystem_Main/src/de/steamwar/fightsystem/fight/FightTeam.java b/FightSystem_Main/src/de/steamwar/fightsystem/fight/FightTeam.java
index e00662b..a5279ff 100644
--- a/FightSystem_Main/src/de/steamwar/fightsystem/fight/FightTeam.java
+++ b/FightSystem_Main/src/de/steamwar/fightsystem/fight/FightTeam.java
@@ -14,6 +14,7 @@ import de.steamwar.sql.NoClipboardException;
 import de.steamwar.sql.Schematic;
 import javafx.util.Pair;
 import org.bukkit.*;
+import org.bukkit.block.Block;
 import org.bukkit.enchantments.Enchantment;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.Inventory;
@@ -306,6 +307,26 @@ public class FightTeam implements IFightTeam{
         }
     }
 
+    public void replaceSync(boolean replace, Material target, Material replacement) {
+        if(!replace)
+            return;
+
+        World world = Bukkit.getWorlds().get(0);
+        Location minPoint = new Location(world, cornerX, cornerY, cornerZ);
+        Location maxPoint = new Location(world, (cornerX + Config.SchemsizeX), (cornerY + Config.SchemsizeY), (cornerZ + Config.SchemsizeZ));
+
+        for(int x = minPoint.getBlockX(); x <= maxPoint.getBlockX(); x++) {
+            for(int z = minPoint.getBlockZ(); z <= maxPoint.getBlockZ(); z++) {
+                for(int y = minPoint.getBlockY(); y <= maxPoint.getBlockY(); y++) {
+
+                    Block block = world.getBlockAt(x, y, z);
+                    if(block.getType() == target)
+                        block.setType(replacement);
+                }
+            }
+        }
+    }
+
     public Set<Player> getInvited() {
         return invited;
     }